[INFO] cloning repository https://github.com/tehpsy/BocoSolver
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/tehpsy/BocoSolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehpsy%2FBocoSolver", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehpsy%2FBocoSolver'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 63d150df4085b15f94d1c73bb2d29c039f763631
[INFO] checking tehpsy/BocoSolver against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftehpsy%2FBocoSolver" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/tehpsy/BocoSolver on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/tehpsy/BocoSolver
[INFO] finished tweaking git repo https://github.com/tehpsy/BocoSolver
[INFO] tweaked toml for git repo https://github.com/tehpsy/BocoSolver written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/tehpsy/BocoSolver already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f851afa55e04b94fd3923689094491a09961593bd6a907623d2ec4a1c11e525f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f851afa55e04b94fd3923689094491a09961593bd6a907623d2ec4a1c11e525f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f851afa55e04b94fd3923689094491a09961593bd6a907623d2ec4a1c11e525f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f851afa55e04b94fd3923689094491a09961593bd6a907623d2ec4a1c11e525f", kill_on_drop: false }`
[INFO] [stdout] f851afa55e04b94fd3923689094491a09961593bd6a907623d2ec4a1c11e525f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec6643e6640e6f8ca9853576c28623d695a6aee929299698ebdbccbdab282427
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "ec6643e6640e6f8ca9853576c28623d695a6aee929299698ebdbccbdab282427", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking petgraph v0.5.1
[INFO] [stderr]     Checking tinyset v0.4.4
[INFO] [stderr]    Compiling enum-iterator-derive v0.6.0
[INFO] [stderr]     Checking enum-iterator v0.6.0
[INFO] [stderr]     Checking boco_solver v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Duration`
[INFO] [stdout]  --> src/main.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::{Duration, Instant};
[INFO] [stdout]   |                 ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/model/board.rs:138:14
[INFO] [stdout]     |
[INFO] [stdout] 138 |         for (id, block) in new_board.blocks.iter_mut() {
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/model/board.rs:170:14
[INFO] [stdout]     |
[INFO] [stdout] 170 |         for (id, block) in new_board.blocks.iter_mut() {
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hardest_boco_level`
[INFO] [stdout]  --> src/example_boards.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn hardest_boco_level() -> Board {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `easiest_boco_level`
[INFO] [stdout]   --> src/example_boards.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn easiest_boco_level() -> Board {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve`
[INFO] [stdout]   --> src/solver.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn solve(board: Board) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_vertical`
[INFO] [stdout]   --> src/model/orientation.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn is_vertical(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/model/neighbour_ids.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub fn new(up: Option<u8>, down: Option<u8>, left: Option<u8>, right: Option<u8>) -> NeighbourIds {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `can_win`
[INFO] [stdout]   --> src/utils.rs:76:8
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub fn can_win(boards: &HashMap<u64, Board>, network: & UnGraphMap::<NetworkNode, ()>) -> bool {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/model/board.rs:138:14
[INFO] [stdout]     |
[INFO] [stdout] 138 |         for (id, block) in new_board.blocks.iter_mut() {
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/model/board.rs:170:14
[INFO] [stdout]     |
[INFO] [stdout] 170 |         for (id, block) in new_board.blocks.iter_mut() {
[INFO] [stdout]     |              ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `intermediate_board_hash`
[INFO] [stdout]    --> src/test.rs:807:13
[INFO] [stdout]     |
[INFO] [stdout] 807 |         let intermediate_board_hash = calculate_hash(&intermediate_board);
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_intermediate_board_hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first_hash_1`
[INFO] [stdout]    --> src/test.rs:809:13
[INFO] [stdout]     |
[INFO] [stdout] 809 |         let first_hash_1 = calculate_hash(&first_board);
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_hash_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `first_hash_2`
[INFO] [stdout]    --> src/test.rs:810:13
[INFO] [stdout]     |
[INFO] [stdout] 810 |         let first_hash_2 = calculate_hash(&first_board);
[INFO] [stdout]     |             ^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_first_hash_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_hash_1`
[INFO] [stdout]    --> src/test.rs:811:13
[INFO] [stdout]     |
[INFO] [stdout] 811 |         let last_hash_1 = calculate_hash(&last_board);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_hash_1`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `last_hash_2`
[INFO] [stdout]    --> src/test.rs:812:13
[INFO] [stdout]     |
[INFO] [stdout] 812 |         let last_hash_2 = calculate_hash(&last_board);
[INFO] [stdout]     |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_last_hash_2`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `hardest_boco_level`
[INFO] [stdout]  --> src/example_boards.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn hardest_boco_level() -> Board {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `easiest_boco_level`
[INFO] [stdout]   --> src/example_boards.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 84 | pub fn easiest_boco_level() -> Board {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `solve`
[INFO] [stdout]   --> src/solver.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | pub fn solve(board: Board) {
[INFO] [stdout]    |        ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_vertical`
[INFO] [stdout]   --> src/model/orientation.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn is_vertical(&self) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 23.49s
[INFO] running `Command { std: "docker" "inspect" "ec6643e6640e6f8ca9853576c28623d695a6aee929299698ebdbccbdab282427", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec6643e6640e6f8ca9853576c28623d695a6aee929299698ebdbccbdab282427", kill_on_drop: false }`
[INFO] [stdout] ec6643e6640e6f8ca9853576c28623d695a6aee929299698ebdbccbdab282427